Woven pile fabric.



No. 7|6,5l9. Patented Dec. 23, I902.

' E. F. CLARK.

WOVEN PILE FABRIC.

(Application flied Apr. 24. 1902.) (No Model.)

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'UNTTT;D STATES PATENT OFFICE.

EUGENE F. CLARK, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON dz KNOWLES LOOM WORKS, OF WORCESTER, MASSA- CHUSETTS, A CORPORATION OF MASSACHUSETTS.

WOVEN PILE' FABRIC.

SPECIFICATION formingpart of Letters Patent No. 716,519, dated December 23, 1902.

Application filed April 24. 1902.

T0 ctZZ whom, it may concern.-

Be it known that I, EUGENE F. CLARK,a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in \Voven Pile Fabrics, of which the following is a specification.

My invention relates to a woven pile fabric, and more particularly to an Axminster or moquette carpet; and the object of my invention is to make an improved pile carpet of the AX- minster or moquette class.

In an Axminster or moquette carpet as ordinarily made the pile is composed of short tufts of worsted or woolen yarn retained on the face of the carpet by a pick of weft-thread passing through the loop formed by the upturned ends of the tufts, such pick of weftthread being incorporated in the body of the carpet by warp-threads,which areinterwoven and held by other picks of Weft-threads passing outside of the loops of tuft-yarns.

In the manufacture of Axminster or moquette carpets as above mentioned it has been found that the tuft-yarns forming the pile of the carpet do not always assume an upright position on the face of the carpet with their ends spread out evenly, so as to have the carpet uniformly covered with the pile over its whole surface, and it has been necessary touse very large tuft-yarns to fill the interstices between the warp-threads or to place the warpthreads so close together that the free ends of the tuft-yarns forming the pile will have no room to fully expand. In both cases it is necessary to use alargeramount of tuft-yarn to make the carpet, which makes the carpet much more expensive.

In order to overcome the difliculty above referred to of the tuft-yarns not assuming an upright position with their ends spread out evenly on the face of the fabric and the using of a larger amount of tuft-yarn in making the carpet, I have made my improvements, which relate particularly to the weave or structure of a carpet of the Axminster or moquette class.

In my improved carpet, which may be made on the loom shown and described in the application for a United States patent, Serial Serial No. 104,476. (No model.)

No. 79,221, filed October 19, 1901, I use between each pair of warp-threads ordinarily used in the manufacture of an Axminster and moquette carpet and shown in the drawings of said application for a patent an extra or supplemental pair of warp-threads for each row of tuft-yarn or loops forming the pile on the face of the fabric, one warp-thread extending on one side of a longitudinal row of loops and the other warp-thread on the other side at a point where the tuft-yarn loops around the pick of weft-thread and in close contact with the tuft-yarn. The two extra or supplemental warp-threads thus act to po* sition the tuft-yarn or loop on the Weft-thread, and as two additional weft-threads ordinarily employed to hold the tuft-yarn in plane are inserted in the same shed and beaten to the fell of the fabric the tuft-yarn or loop is firmly held in an upright position in the carpet between the two picks of weft-threads and also in a longitudinal direction between the two supplemental warp-threads, with the free ends of the loops covering uniformly the whole face of the carpet.

I have shown in the drawings a detached portion of a pile fabric or carpet embodying my improvements, sufficient to enable those skilled in the art to which my invention be- .longs to understand the same.

Referring to the drawings, Figure 1 is a longitudinal section of a pile fabric embodying my improvements, taken at a point indicated by line y y, Fig. 2, looking in the direction of arrow a, same figure. Fig. 2 is a cross-section of my fabric, taken at a point indicated by line w m, Fig. 1, looking in the direction of arrow 1), same figure; and Fig. 3 is a plan view of my fabric with the warp-threads and the weft-threads separated, showing only two sets or rows of tuft-yarn or loops.

In the drawings, 1 and 2 are the two sets of warp -threads ordinarily used, arranged in pairs and raised and lowered at the proper time by the mov ment of the harnesses to form the sheds to receive the tuft-yarn, which is inserted in any ordinary and well-known way to form a loop 3 of tuft-yarn with the free ends extending upwardly on the face of the fabric and also to receive the double pick of weft-thread 4, inserted through the loop, and the two double picks of weft-thread 5 6, inserted one on one side of and the other below the loop 3 in the same shed in the usual and well-known way, and as described in said application for a patent, Serial No. 79,221, above referred to.

The two extra or supplemental warpthreads 7 and 8 of myimprovements, also arranged in pairs, extend one on one side and one on the other side of each loop 3 to support and hold upright the free ends of the loop, as shown in Fig. 2.

The supplemental warp-threads 7 and 8, one on each side of each loop 3, extend in the body of the fabric in a substantially straight direction and are not interwoven around the weft threads, but extend below the weftthread in the loop of the tuft-yarn and the contiguous weft-thread on the outside of the loop.

In manufacturing my improved carpet the mechanism shown and described in the application for a patent, Serial No. 79,221, above referred to, may be used with slight alterations.

The advantages of my improvementsin pile fabrics or Axminsteror moquette carpet will be readily appreciated by those skilled in the art.

By means of the two extra or supplemental warp-threads 7 and 8, one on each side of the loops of tuft-yarn, Ihold the free ends of the tuft-yarn in an upright position and prevent their spreading too much on the face of the fabric.

It will be understood that my improvements are not limited to any particular way of interweaving the warp and filling threads, but can be used in connection with any wellknown way of interweaving the warp and filling threads employed in the manufacture of pile fabrics or Axminster or moquette carpet.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A pile fabric or tuft carpet, composed of two sets of warp-threads forming the two planes of the shed, and three picks of weftthreads in each shed between the sets of warpthreads, one Weft-thread extending through the loop of tuft-yarn, and one weft-thread on one side of said loop and in contact therewith, and said loop of tuft-yarn, and two extra or supplemental warp-threads for each longitudinal row of loops of tuft-yarn, one on one side, and one on the other side of the loops, to support the loops in the direction of the length of the fabric, said supplemental warp-threads extending in a substantially straight direction in the body of the fabric, and not interwoven around the weft-threads, substantially as shown and described.

2. Apile fabric, ortuft carpet, composed of two sets of warp-threads forming the two planes of the shed, and three picks of weftthread in each shed between the sets of warpthreads, one weft-thread extending through the loop of tuft-yarn, and one weft-thread on one side of said loop and in contact therewith, and said loop of tuft-yarn, and two extra or supplemental warp-threads for each longitudinal row of loops of tuft-yarn, one on one side, and one on the other side of the loops, to support the loops in the direction of the length of the fabric, said supplemental warp threads extending in a substantially straight direction in the body of the fabric, below the weft-thread in the loop of tuft-yarn and the contiguous weft-thread on the outside of the loop and not interwoven around the weft-threads, substantially as shown and described.

EUGENE F. CLARK. Witnesses:

J. O. DEWEY, M. HAAS. 

